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3 years ago

The visible part of the spectrum of light is where you find which of the following?

Physics

2 answers:

Marina CMI [18]3 years ago

8 0

C.) All colors .......

Nimfa-mama [501]3 years ago

4 0

The correct answer to the question is- C) All colors i.e the visible part of electromagnetic spectrum of light contains all colors.

EXPLANATION:

The electromagnetic spectrum contains various electromagnetic radiations starting from gamma rays to radio wave.

The electromagnetic waves whose wavelength lie between 350 nano metre to 700 nano metre are visible to human eye. This region of electromagnetic spectrum is called visible light.

The visible light contains white light with its constituent seven colors known as violet, indigo, blue, green, yellow, orange and red.

There are various other colors which are produced due to the intermixing of colors. These colors will also correspond to visible part of the electromagnetic spectrum.

Hence, the correct answer to the question is that it contains all colors.

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Let A be the amount of money that Aliya deposited in the savings account. Since A is half as much as money as she invested in a money market account, then the amount that she invested in the market account is 2A.

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Since the money market account gives 3.7% simple interest, the total amount of interest that she will earn from the money market account, is 3.7% of 2A, which is equal to:

$\frac{3.7}{100}\times2A$

Add both interests in terms of A and simplify the expression:

$\begin{gathered} \frac{1.9}{100}\times A+\frac{3.7}{100}\times2A \\ =\frac{1.9}{100}\times A+\frac{7.4}{100}\times A \\ =(\frac{1.9}{100}+\frac{7.4}{100})\times A \\ =\frac{1.9+7.4}{100}\times A \\ =\frac{9.3}{100}\times A \end{gathered}$

The expression (9.3/100)*A represents the total interest after one year. Then:

$\begin{gathered} \frac{9.3}{100}\times A=297.60 \\ \Rightarrow A=\frac{100}{9.3}\times297.60 \\ \Rightarrow A=\frac{100\times297.60}{9.3} \\ \Rightarrow A=\frac{29760}{9.3} \\ \Rightarrow A=3200 \end{gathered}$

Use the value of A to find the amount that was invested in the money market account:

$2A=2\times3200=6400$

Therefore, Aliya deposited 3200 in a savings account and 6400 in a money market account.

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